C31232233133313221211113313331333132313331333133313331333133313331312311231   >>    C3123223313331322121111331333133313231333133313331333133313331333131231123   <<    C31232233133313221211113313331333132313331333133313331333133313331312311233   >>      C31232233133313221211113313331333132313331333133313331333133313331312311232   >>